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Current Electricity

Question
CBSEENPH12040132

A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n?

Solution

A.

Short circuited current,

I = nεnr = εr

So, I is independent of n and I is constant

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